Skip to main content
Skip to navigation

In search of more solutions

A transient red colour: the aqueous chemistry between iron (III) ions and sulfur oxoanions

No comments

Downloads

A transient red colour - Student
Experiment | PDF, Size 0.25 mb
A transient red colour - Teacher
Experiment | PDF, Size 0.28 mb

No comments

Level

16-18 years

Use

Category

Specification

England
- A/AS level
  - AQA Chemistry
    - Inorganic chemistry
      - Transition metals
        Formation of coloured ions
        Transition metal ions can be identified by their colour.
  - OCR Chemistry A
    - Module 5: Physical chemistry and transition elements
      - 5.3 Transition elements
        5.3.2 Qualitative analysis
        qualitative analysis of ions on a test-tube scale: processes and techniques needed to identify the following ions in an unknown compound: anions: CO₃²⁻, Cl⁻, Br⁻, I⁻, SO₄²⁻; cations: NH₄⁺; Cu²⁺, Fe²⁺, Fe³⁺, Mn²⁺, Cr³⁺
        5.3.1 Transition elements
        k) redox reactions and accompanying colour changes for: interconversions between Fe²⁺ and Fe³⁺ ; interconversions between Cr³⁺ and Cr₂O₇²⁻ ; reduction of Cu²⁺ to Cu⁺ and disproportionation of Cu⁺ to Cu²⁺ and Cu
Scotland
- Higher
  - SQA Chemistry
    - 1. Chemical changes and structure
      - (c) Oxidising and reducing agents
        In a redox reaction, reduction and oxidation take place at the same time.
- National 5
  - SQA Chemistry
    - Chemistry in society
      - Metals
        Redox
        In a redox reaction, reduction and oxidation take place at the same time.

Related articles

Resource
Tricky tracks: observation and inference in science | 11–14 years
Presentation, worksheet and lesson plan to help learners understand the difference between observation and inference as you build their understanding of the scientific process
Ideas
Building literacy skills in science
2023-03-02T07:00:00Z
Follow this guide to introduce and develop your students’ literacy skills in science
Resource
Practical planning: spot the mistakes | 14–16 years
Use these exam-style questions to check your learners’ understanding of experimental skills and strategies

No comments yet

You're not signed in.

Only registered users can comment on this article.

Register

More In search of more solutions

Resource
A chemically powered boat - a bubble race
An activity worthy of classroom competition, create junk boats, powered by chemistry and sail into learning. Includes kit list and safety instructions.
Resource
Move a heavy object
Design and make a device to move the heaviest possible object at least 10 cm on a flat surface.
Resource
Making ice
An everyday activity, like making ice, can hide complex chemistry. Explore the process with full kit list and safety instructions.